Floor polisher



Jan. 17, 1928.

A. F. STEIERT ET AL FLOOR POLISHER Filed March 1923 2 Sheets-Sheet l Oa 00v" Jan. 17, 1928.

A. F. STEERT ET AL FLOOR POLI SHER Filed March 13. 1923 2 Sheets-Sheet 2 Patented Jan. 17, 1928.

ALOIS F. STEIERT AND OSCAR W. LINKE,

or PHILADELPHIA, PENNSYLVANIA, AS-

SIGNORS TO S. L. PRODUCTS COMPANYA CORPORATION OF DELAWARE.

rLooR. PoLIsnER.

Application filed March 13,1923. Serial No. 624,819.

Our invention relates to floor polishing devices, and one object of the invention is to provide a polisher which combines with means for applying a polishing medium to the floor or other surface, a container for the medium together with means including a valve for expelling a predetermined amount of the medium from the container.

A further object of the invention is to provide a dc 'ice of this nature in which the valve mechanism is an extremely simple one.

A still further object of the invention is to provide a device of this nature in which the valve and its operating mechanism are enclosed by the container.

The invention further resides in a novel and advantageous arrangement of elements hereinafter fully described.

ll ithreterence to the d 'awings:

Figure 1, is a longitudinal section through a device made in accordance with ourinvention;

Fig. 2, is a transverse section on the line 22, Fig. 1; r

Fig. 3, is a fragmentary perspective illustrating the valve mechanism, and

Fig. 1, is alongitudinal section illustrating modification 01 the device. 7

ll ith reference to the drawings, the device comprises in its preferred form a substan tially rectangular casing 1 having a recess 2 in one side, at the bottom of which is an aperture through which the liquid polishing medium may be admitted to the interior of the casing, this aperture normally being closed by a threaded plug 3. The casing also comprises as integral elements a recess 4% at each end which are adapted to hold applicator pads 5, 5, which in one position of the casing bear upon the floor or. other surface to which the polish is to be applied and which constitute a means for spreading the polish over the surface and for treating the surface therewith. That side of the container l opposite the recess 2 is provided with a flexible formation similar .to that employed in oil cans which permits this side to be flexed inwardly to reduce the interior area of the container, a suitable discharge opening being provided through which under such conditions a portion of the contained liquid is ejected. This discharge opening in the present instance is located in the sloping side of a wedge-shaped recess 6 and is controlled by a suitable valve which,

in the present instance, comprises a screw 8 adapted to enter the discharge aperture. The lever arm 9 is pivotally mounted upon a member 10 secured in suitable manner to the inside of the casing l, and it will be noted that the inclined face of the recess 6 in which the discharge opening is located is provided for strengthening purposes with a washer 7 through which the aperture passes and which is so disposed that the valve bears flat against the inner face thereof, as clearly illustrated in Figs. 1 and The arm 9 projects beyond the pin 11 towards the flexible portion 12 of the casing and normally bears against or lies close to this portion whereby when thela'tter is flexed inwardly, the contiguous end of the arm forced inwardly, with the result that the *alve 78 is elevated from the apertured surface against which it normally bears, thereby opening the discharge aperture and permitting the passage of the contained liquid therethrough.

It will also be noted thatsimultaneously with the elevation of the valve from the aperture and by reason of the inward flexing ofthe part 12 of the casing, the interior area of the casing is reduced, with the result that a portion of the liquid contents is actually forced from the casing, the amount of the discharged liquid being controlled by the extent to which the casing is flexed inwardly and the degree to which the *alve is opened.

A spring 13 secured to theopin 11 bears against one side of the lever 9 and against the edge of the element 10, this spring tending to retain the valve in the closed position even when they casing is reversed. A. rod 1 1 extends laterally through the casing and projects beyond the sides thereof, the

projecting ends of the rod constituting trunnions, by means of which a forked handle 15 may be attached to the casing, the bar 1 1 also constituting a stop limiting the movement of the arm 9 in the casing. The cars ing is adapted to receive a hoodlike pad which covers that side of the casing that is flexible and which provides means for further treating and polishing the surface to which the wax or other material has previously been applied.

The operation of the device will be clear from the foregoing description. A quantity of the liquid polish having been placed in the container, the latter is made to assume the position illustrated in Figs. 1 and 2, in which the applicator pads 5, 5, rest upon the surface which it is desired to polish. A. slight pressure by'the foot upon the portion 12 of the casing, which is new at the top, causes the valve to open and a portion oi the liquid polish to be expelled from the casing onto the surface. then moved over the surface by means ol? the handle 15 in such manner as to distribute the liquid and to rub it thoroughly in. \Vhen the surface has thus been thoroughly treated with the polish, the casing 1 isswung over to the reverse position in which it rests upon the pad 20, and is again moved over the surface in such manner as by further treatment to rive the polished :uapearanee that is desired. i i

The construction has inunerous advantages. themain one being that by employing a positive valve, any tendency oi the liquid to leak from the casing is eliminated and the air is kept from eireulatinp through the interior oi the casing! so that the polish does not deteriorate or harden. By having the discharge (.menin;- located in a recess-in the c;isi11 c,tl1eie is not the same tendency for the outer surface of the casii'ig to become smeared with the polish, and the eonstruri-- tion which provides a pin which actually enters the discharge opening, as does the n'ojecting end of the screw 8, prevents the accunuilation o't hardened polish around the discharge opening with a possible eventual clogging.

ln Fig. l. we have illustrated a modification in which the valve is eliminated and which, in fact, does not require the provision otthe flexible side portion 12, although this may be included if desired. In this instance. one or more comparatively large apertures 16 is novided in the end wall or walls of the container portion o'lf'the ing, and the polish reaches the floor surface hy soahing through the pads 1T. 1.7 which may he of "l'elt or like material and which are preferably provided with suitable recesses ltw' which register with the apertures 10, as

clearly illustrated, whereby the polish may reach the interior of the pad and more read ily he passed down to the working surface. By malt'ing the apertures 16 comparatively large, it is found that the motion oi? the easingin operation causes the liquid polish to pass through the apertures into the pad in Sullieicnt quantities to give a proper applica- The casing is tion, and the amount of discharge can be adjusted by "varying the size of the aperture or apertures.

ll e claim:

1. In a floor polishing device, the comhinatiou with a container l'ltlvllltt' a discharge opening, appli ator elements adapted to sup port the container in a position permitting eject-ion ol? :1 contained liquid through the discharge openitu;- to the supporting surface. a llerzible, wall in said container constituting ejecting means, and a valve normally closing said discharge optnnng and operativcly assoriated with said liexihle wall whereby the opening is uncovered when the llexihle wall pressed inwardly.

In a floor polishing device, the comhiuatiou with a ipntainer having a discharge opening, applicator elements adapted to support the container in a position permitting ejwtion ol a vontaineel lhpiid through the discharge opening to the snu'iporting surface, a llexihle wall insaid container crmstituting ejecting means. a valve normally closinp said discharge opening and means operatively assoij'iated with the tlcxihle *all l'or moving thevalve inwardly of the container when the flexible wall n'essed.

:3. In a liner polishing device. the comhination with a container ha vine; a discharge opening. applicator elen'ients adapted to support the container in a position perrnitthn;- ejection of :1 contained liquid through the discharge opening to the supporting surface, a flexible all in said container ronstituling ejecting means, and a ralye adapted to close said discharge opening. a lever pivotally secured within the container and connected at one end with the valve. the other end ot the lever lying COIltigllOlts to the flexible wall wherel'iy movement in *ardly of the latter may open the valve.

t. Inn lloor polishing device, the cone hination with a container having; a discharge opening in one side and on the opposite side a llexihle 'all constituting means l'or ejecting a contained liquid from said OlitlllIlfJj, applicator elen'lents adapted to support the corn tainer in a position tier-milling: ejection olf said contained liquid through the discharge opening to the supporting surface, a valve adapted to i'jlOFP said discharge opening, and means operatirely connecting the aive with said flexible wall whereby when the latter is pressed inwardly the opening is uncovered.

ALOIS F. S'Il llllllt'll.

OSCAR YV. L'lNKll.

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